Centrifugal Force

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The online Centrifugal Force helps you calculate instantly and solve problems related to Laws Of Motion. This tool provides accurate results using standard formulas and step-by-step calculation; you can view the formula with example in the calculator where available. Whether you are a student, teacher, or professional, this calculator simplifies complex calculations and saves time. Enter the required values below and get instant results. Results are shown clearly, with optional step-by-step explanation where applicable. The tool is free to use and works in any modern browser—no download or installation required. Bookmark this page for quick access whenever you need reliable Physics calculations.

Centrifugal Force: calculate the requested physical quantity from the stated inputs using F = mv²/r. The page states the model assumptions, units and worked examples so the result can be checked.

  • Magnitude of the fictitious centrifugal force in a uniformly rotating frame: F_cf = mv²/r. It acts radially outward in the rotating frame and is not a real interaction force in an inertial frame.

Inputs

Please enter a valid Mass.
Mass in kg.
Please enter a valid Velocity.
Velocity in m/s.
Please enter a valid Radius.
Radius in m.

Results

Symbols, Variables & Units

InputSymbol / nameUnitRole
massMasskgMass in kg.
velocityVelocitym/sVelocity in m/s.
radiusRadiusmRadius in m.

Use a consistent unit system. The Physics engine evaluates numerical inputs in the units stated beside each field; it does not silently convert incompatible dimensions.

Physics Study Guide

Concept

Non-inertial reference frames

Exam focus

Do not confuse centrifugal force with centripetal force. Centrifugal force is outward only in the rotating frame; centripetal force is the net inward force required for circular motion.

Common mistakes

  • Do not treat centrifugal force as a real interaction force in an inertial frame.
  • Check whether the problem is being solved in a rotating or inertial frame.
  • Keep the radius and speed in SI units.

How to verify your answer

Check that the magnitude is mv²/r and that the stated reference frame justifies using the fictitious force.

Model limits

This result is valid only under the assumptions stated on the calculator page. For real systems with non-ideal geometry, losses, distributed effects or relativistic/quantum corrections, use the appropriate advanced model.

Worked Examples
Worked example

Use mass = 2, velocity = 10, radius = 2. The validated result is force = 100.

Inputs:
  • mass: 2
  • velocity: 10
  • radius: 2
Expected Outputs:
  • force: 100
  • result: 100
Second worked example

Use mass = 3, velocity = 15, radius = 3. The validated result is force = 225.

Inputs:
  • mass: 3
  • velocity: 15
  • radius: 3
Expected Outputs:
  • force: 225
  • result: 225